how much gain

Posted by: Mike Cole on 25 October 2002

Does anybody know how much gain (in dB) the MC phono board for the Nait3 has?

Mike
Posted on: 31 October 2002 by NaimDropper
I did a simulation of the NA323 k board, which is probably the same as in the Nait 3.
Of course, the phono sections have the RIAA eq on them so that they properly play records, so the gain is a function of this curve as well as a function of the overall gain of the board. I've usually seen this specified at 1kHz. This gives us about 54dB voltage gain there.
I've plotted gain and phase (a Bode plot) so you can see how the filter works. I plotted from 1Hz to 100kHz so you can see the midband (audio) and the ends.
It's in PDF format.
Have fun!
David
Posted on: 31 October 2002 by NaimDropper
Couldn't post the PDF as a picture, not going to go to the trouble of scanning.
So, here's a link:
http://members.aol.com/rf9000/MCGain.pdf
David